The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory captions and links exemplifying features within the Earth system. The community is invited to contribute digital imagery, short captions and relevant links.

Grand Geyser

This captivating photo of Grand Geyser in the Upper Geyser Basin of Yellowstone National Park, Wyoming was taken on the afternoon of June 24, 2008. Seen on the right, Grand Geyser is erupting here with a simultaneous eruption of Vent Geyser (left). These are both fountain-type geysers. Geothermally heated water from Grand Geyser is propelled to heights of 200 ft (61 m). The eruption may last up to 12 minutes. This impressive geyser is considered the tallest, predictable geyser in the world, erupting about every 12 hours.